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(No Model.)

J. G. TRENEAR.

- MODE OPVENTILATING SEWERS AND TRAPS. No. 252,548. PatentedJan.1'7,1882.

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ATTORNEYS.

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UNITED STATES PATENT OFFICE.

JOHN TRENEAR, OF HUNTINGTON, WEST VIRGINIA.

MODE OF VENTILATING SEWERS AND TRAPS.

SPECIFICATION forming part of Letters Patent No. 252,548, dated. January17, 1882. Application filed October 27, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN G. TRENEAR, of Huntington, in the county ofOabell and State of West Virginia, have invented a new and Improved Modeof Ventilating Sewers and Traps; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawing, forming part of thisspecification, in which the figure is a side elevation, partly insection.

My invention relates to improvements in ventilating sewers and traps;and it consists in the peculiar construction and arrangement of theparts, as hereinafter more fully set forth.

In the accompanying drawing, it represents a portion ofa sewer-pipe,arranged in the usual manner below the hedot' a street, and providedwith the ordinary waste-water pipes, b 0, communicating at their upperends with sinks in a house, and opening into the sewera at their lowerends in the usual manner, and provided near their lower ends with theordinary bends or traps, (l e, to prevent the ingress of sewergas intothe house.

It represents an air-pipe laid in the street, directly over the sewerand parallel therewith, or nearly so.

k k represent vertical pipes eonnecting the air-pipe h with the sewer a.The mouth Zof the air-pipe h communicates with the open air,

and, if deemed necessary, an air-pump may be applied at the mouth of theair-pipe to increase the draft therein.

m represents a house provided with a chim ney, 02, having a furnace, 0One end of the air-pipe It leads into the chimney, below the furnace,whereby the sewer-gas is consumed and a draft given to the air in thepipe 1:.

9 represents an inclined pipe connecting the air-pipe h with the trap c,to prevent the wastepipe 0 from siphoning at the trap 0 when thewaste-pipe is full by the introduction of air from the air-pipe hthrough the inclined pipe 2, and thus prevent theingress of'sewer-gasinto the house through the waste-pipe o.

q represents a bent or angular pipe leading from the sewer a to the'trapd of the waste-pipe b. The function of the pipe (1 is to preventthewaste-pipe b from siphoning at the trap d by furnishing air from thesewer when not convenient to attach the pipe q to the air-pipe It.

By this construction it will be seen that all gas will be removed fromthe sewer by passing through the vertical pipes 70 into the air-pipe h,and thence to the furnace, where the gas is consumed. If any gas passesup through the lower end of the waste-pipe c, it will pass thencethrough the pipe 1) into the air-pipe h, and be carried thence to thefurnace and consumed.

What I claim as my invention is The combination, with a sewer providedwith the waste-pipe 0, opening into the sewer, and having a trap, c, ofthe air-pipc h, opening into a chimney, n, below its furnace 0, andpipes 7c 9, connecting the air-pipe h and sewer, whereby the sewer-gasis consumed, substantially as described.

JOHN G; TRENEAR.

Witnesses:

SoLoN (J. KEMON, CHAS. A. PETTIT.

